IE7 has a little bug that is most annoying
Information is not displayed in the status bar on mouse-overs.
Here's how to fix this:

Upper Right corner of IE click on Tools....Choose Internet Options and then choose "Security"
Click "Custom level..." button and scroll down, almost to the bottom and you'll see Scripting.Find "Allow status bar updates via script" and enable it. Restart IE to activate. That should fix the problem.